154345545 has 12 divisors (see below), whose sum is σ = 267532356. Its totient is φ = 82317600.

The previous prime is 154345523. The next prime is 154345547. The reversal of 154345545 is 545543451.

It can be written as a sum of positive squares in 2 ways, for example, as 69355584 + 84989961 = 8328^2 + 9219^2 .

It is not a de Polignac number, because 154345545 - 2¹³ = 154337353 is a prime.

It is a super-2 number, since 2×154345545² = 47645094522694050, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (154345547) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1714906 + ... + 1714995.

It is an arithmetic number, because the mean of its divisors is an integer number (22294363).

Almost surely, 2^154345545 is an apocalyptic number.

154345545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

154345545 is a deficient number, since it is larger than the sum of its proper divisors (113186811).

154345545 is a wasteful number, since it uses less digits than its factorization.

154345545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3429912 (or 3429909 counting only the distinct ones).

The product of its digits is 120000, while the sum is 36.

The square root of 154345545 is about 12423.5882497771. The cubic root of 154345545 is about 536.4114417664.

Adding to 154345545 its reverse (545543451), we get a palindrome (699888996).

The spelling of 154345545 in words is "one hundred fifty-four million, three hundred forty-five thousand, five hundred forty-five".